MLA

Van Vechten, Carl, 1880-1964. Slavenska, Mia, as Carlotta Grisi in Pas de Quatre, choreographed by Anton Dolin. Box 376 | Folder 5439. 1948 September 23. https://collections.library.yale.edu/catalog/10054095.

APA, 6th edition

Van Vechten, Carl, 1880-1964. (["Box 376 | Folder 5439"])(1948 September 23)[Slavenska, Mia, as Carlotta Grisi in Pas de Quatre, choreographed by Anton Dolin]. https://collections.library.yale.edu/catalog/10054095.